4.3 Save the results

Well, crawlers written and now we may have a question: If I want to grab the results saved, how to do it? Components WebMagic to hold the result is called Pipeline. For example, we adopted "console output" it is through a built-in Pipeline completed, it is called ConsolePipeline. Well, I now want to save the results down by Json format, how to do it? I just need to be replaced to achieve Pipeline "JsonFilePipeline" on it.